OpenTechnical

OT-2026-000085437

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000085437) never changes.

Identity and time

Publication numberOT-2026-000085437 · never reused
Internal UUID01a0ae99-aaab-7fdb-af0e-87571acec3d2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085437
StatusPUBLIC

Content hashes

Canonical text9e0e5c6e99dbff6717e1890d0a7c356d921051e140817cea9bd21d68ba4083d9
Markdown1d16dfdb95baf2b7a37da400a3f451234180cf5e2c6c4ad801df295cc43d0e1e
PDF
Publication page563922e543b98c2376d46286437bd0ec2f902636e88be338f3d1904579fc7374
Manifest192087030c3a2fb8c32fa62474eb47705b83c07e3500c06602b79c63bb17ec23

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureYD6qGObElaA6IshTigzw6MQJevg0ZJW+nSpNX/Uwar58UukNqhDQyHOcTTDYtE5nm4PeV/TwE0IMTRaOfGklCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:54:13.232273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085437
observed 563922e543b98c2376d46286437bd0ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:13.214465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085437/manifest.json
observed 192087030c3a2fb8c32fa62474eb4770...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:13.196313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085437/publication.md
observed 1d16dfdb95baf2b7a37da400a3f45123...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:13.179349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085437/publication.txt
observed 9e0e5c6e99dbff6717e1890d0a7c356d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.